Ultra-wide-angle day and night confocal low-temperature drift lens with five-piece structure

The invention provides a five-piece framework ultra-wide-angle day and night confocal low-temperature drift lens. The five-piece framework ultra-wide-angle day and night confocal low-temperature drift lens comprises a first lens, a second lens, an aperture diaphragm, a third lens, a fourth lens and a fifth lens which are sequentially arranged from an object space to an image space along an optical axis, the first lens is a negative lens, is convex towards the object side and is concave towards the image side; the second lens is a positive lens, is concave towards the object side and is convex towards the image side; the third lens is a positive lens, and is a convex surface towards the object side and a convex surface towards the image side; the fourth lens is a negative lens, and is a concave surface towards the object side and a concave surface towards the image side; the fifth lens is a positive lens, and is convex towards the object side and convex towards the image side. According to the five-piece frame